Other thank really fake looking lily-flowers, I've not seen any artificial floating plants.
Probably because real floating plants are so easy to look after, and are great for the water...artificial ones would be pointless.
Amazon frogbit is a very fast growing, very easy one to grow, as are and
S.minima.
Water lettuce,
S.auriculata and
S.natans are also easy, but are often sold after being grown outdoors, so tend to die back before they adapt to the new lower lighting, so I would avoid them unless you can buy them from a member on here or someone you know has grown them in an aquarium.
Another easy one (even though some places list it as hard) is, red root floater
Phyllanthus fluitans. I have loads of this in all my freshwater tanks, and will be selling some soon.
Then of course, there's duckweed, which is so easy to grow that you'll probably struggle to control it's growth.
The reason floating plants are so easy, is that 1)they float right next to the light so get loads of it 2)because the tops of thier leaves are in the air, they can access CO2 in the air - which diffuses much faster than in the water and 3) the leaves are at no risk of algae because they are dry.
Advantages of live floating plants are they suck up all the nutrients from the water, so your nitrate levels will probably drop a lot (basically better water quality for the fish) and the other nutrients are less available to algae, especially as there is less light for the algae in the tank too (they float and block out the light for other plants)
The only downside IMO is that they limit your choice of plants you can grow underwater, as they block out a lot of light unless you very frequently remove excess.
Anubias spp., mosses and Java fern thrive in the shade though, and are easier to grow with floating plants because they are at less risk from being run over by algae.
So by going with floating plants, it makes it even easier to grow these certain other live plants in the tank, if your interested

.